Mounting for printing-press form and vibrator rollers



BAHQSE E. F.DUD| EY MOUNTING FOR PRINTING PRESS FORM AND VIBRATOR ROLLERS Filed March 5. 1921 Patented Get. 30, 11923,.

[TED STTE LWAEE EDWARD F. DUDLEY, OF OAK PARK, ILLINOIS, ASSIGNOR TO MIEHLE PRINTING PRESS AND MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MOUNTING FOR PRINTING-PRESS FORM .AND VIBRATOR ROLLERS.

Application led March 8, 1921.

To all 107mm it may concern.'

Be 1t known that I., EDWARD F. DUDLEY, a

citizen of the United States, residing at Calm Park, in the county ofCook and State of Illinois, have invented certain new and use ful Improvements in Mountings for Printing-Press Form and Vibrator' Rollers, of which the following' is a specification.

The salient feature of this invention pcrtains to the mountings of the form-inking rollers of a printingpress and their associated vibra-tory distributing roller.

The chief purpose of the new construction is to so mount these rollers that they may be swung away from the form and at the same time become automatically separated from one another.

Such form-inking rollers are ordinarily of a relatively-soft, gelatinous-like compo ao sition in order that their surfaces may yield readily and sufficiently when passing over the form to fully and adequately ink-the irregular or indented face of the latter. The eoacting vibrator-roller is usually made of metal and it is desirable that when such group or set of rollers is swung or shifted away from the form into inactive position, the metal roller should move out of contact with the other rollers, otherwise there is a tendency for the formation 'of flat strips or streaks on the latter by reason of their` lying in engagement with one another under some pressure without at the same time being rotated.

Accordingly, in the preferred embodiment of the invention, these rollers are mounted so that they may be swung down away from the form into inoperative position. such movements of the parts at the same time effecting the desired separation and all this is accomplished without disturbing the drive mechanism of the vibratory roller, the shaft of which is rotated by means connected to one end and reciprocated by operating means connected to its other end.

Since such operating mechanisms for the shaft are always in condition to perform their functions, the workman need pay no attention to them in swinging the rollers up to form engaging position or down out of coactive relation with the form.

In the accompanying drawing forming a part of this specification and throughout the v several views of which like reference characserial No. 419,510.

ters refer to the same parts, I have shown a convenient embodiment of the invention in `such physical form as is well adapted for employment in printing-presses and similar machines.

In this drawing;

Figure 1 is an elevation of the structure;

Figure 2 is an end view of the Same;

Figure 3 is a vertical section on line 3-3 of Figure 1; i

Figure 4 is a section on line 4.-1 of Figure Figure 5 is a vertical section on line 5 5 of 'F igure 1;

Figure 6 illustrates'the relation of the parts when the rollers have been swung down to inoperative position; and

Figure 7 shows the gearing for driving the vibrator roller.

The appliance includes frame members 11 and 12 on which aligned bearings 13 and 14 are mounted for the accommodation of a supporting shaft or rod 15.

Loosely keyed on and supported by such shaft are a pair of arms 16 and 17 equipped with a pair of bearings 18 and 19 for the shaft 21 of an upper, form-inking, composition roller '22 and with a pair of similar bearings 23 and 21 for the shaft 25 of a like, lower, form-inking roller 26.

Downward swinging of such two support- 'ing arms is limited or restricted by lugs or stops 27 on their lower ends engaging lthe faces of the frame elements 11 and 12 as shown in Fig. 6.

The companion or complementary, metal vibrator-roller or drum 28, normally in contact with the two composition-rollers, is mounted on a shaft 29 extended through holes 31, 31 in the arms 16 and 17 larger than the diameter ofthe shaft, the latter being revolubly supported near one end in a bearing 32 on an arm 33 rigidly fastened to the shaft 15 by a key 35, the latter and a similar aligned key at the opposite end of the machine extending through recesses 341 in the hubs of arms 16 and 17 giving to these elements a certain degree of angular movement on the shaft.

The other end of shaft 29 is rotatable in a bearing 36 of a gear-casing 37 mounted to rock on the supporting shaft 15 and enclosing a gear 38 fastened to shaft 29 and through an intermediate pinion 40 in cooperative relation with a gear 39 free to revolve on shaft 15 and rigid with a gear 41 in another stationary gear-casing 42 and driven by gearing 43 from any suitable source of power not shown.

Shaft 29 and its metal roller or drum 28 during their rotation by the means specified, are vibrated or reciprocated back and forth in the bearings by means of .a rock-arm 44 hinged to the shaft at its upper divided end at 45, rockingly mounted on a s ultable support or bracket at 46, and equlpped at 1ts lower bifurcated end 47 with pivoted blocks or rollers, not fully shown, in an annular or peripheral groove 48 of a collar or sleeve 49 slidable lengthwise on shaft 15 and reciprocated by blocks or rollers 51 on the yoke end of an arm 52 engaging in a groove 53 of the collar or sleeve, the hub 54 of such arm being mounted for oscillation on a suitablyiournalled upright shaft 55 fitted with a bevel-gear 56 in mesh with a toothed sector 57 on an appropriately-supported, short, horizontal, oscillatory shaft 58 provided with a curved arm 59 keyed thereto and connected to an operating link 61 actuated from below by any approved means not shown.

Thus by the gearing at one end, the shaft 29 and its vibrator-roller or drum 28 are rotated, and, by the mechanism connected to the other end of the shaft, such parts are reciprocated or vibrated in proper fashion to effect the required ink distribution.

To rock the several, coacting, contacting rollers to shift them from operative to inoperative position and vice versa, shaft 15 is supplied with a handle 62 fixed thereto, and to lock such handle in position to retain the rollers in active form-engaging relation, a bell-crankr 63 is supplied, one arm of which affords a handle, the other arm having a roller 64 designed to engage the edge of handle 62 and bear on a shoulder 65 outstanding therefrom.

When the rollers are in operative position, and both of rollers 22 and 26 are in contact with the intermediate vibrator-roller 28, the bell-crank lock 63, 64, being on dead center, holds the handle 62 in the position shown in Figure 2. i

Because the supporting arm 33 is firmly and rigidly keyed to shaft 15, such locking of the handle 62 holds the metal Vibratorroller 28 up in active position (see Figure 4), the key or keys 35 engaging or bearing against the end walls of recesses 34 of the two arms 16 and 17 maintaining the latter and their composition-rollers 22 and 26 in form-,nking relation, as shown in Figure 5, under which circumstances roller 28 engages or contacts with the composition-rollers during its rotation and reciprocation.

en, however, it is desired to swing the rollers down into inactive position, the operator turns the bell-crank 63 to unlock lever or handle 62, whereupon the'three rollers rock down until the stops 27 engage the frame, thus limiting the descent of the two rollers 22 and 26, as shown in Fig. 6. The metal vibrator-roller 28, however, swings downY Thus by the play or looseness between the parts, the rollers are not only rocked down to inoperative position, but they are also automatically separated from one another for the purpose specified.

To shift the rollers back to active position, handle 62 is pulled forwardly and locked by the bell-crank member 63. Such movement of the handle because of its rigid connection with arm 33 through the shaft and key, carries roller 28 into engagement with the complementary rollers 22 and 26, and, as soon as rthe keys strike the end walls of the recesses or notches 34 of the hub or arms 16 and 17, the latter begin their upward swinging carrying the compositionrollers with them, where'by all three of the rollers are rocked up to operative position as shown in Figures 4 and 5, in which relation they are held 'by the locked handle.

Obviously the present invention is capable of embodiment in a variety of radically different mechanical forms and is consequently not limited to the preferred embodiment herein set forth in detail both by illustration and description. Statedsomewhat differently, the invention is not restricted and limited to the details of structure presented, these being subject to radical modification without departure from the substance of the invention as defined by the appended claims.

I claim:

1. In a printing-press, the combination of a form-inking roller, a vibrator-roller normally in contact with said forrn-inking roller, a. vibrator-roller shaft, means to rotate said shaft at one end thereof, means t-o reciprocate said shaft at its other end, and a hinged mounting for said rollers permitting them to be swung down from the form into inoperative position and substantially Simultaneously separated from one another, at the same time maintaining said vibratorroller rotating and reciprocating mechanisms operative, substantially as described.

2. In a printing-press, the combination of a rock-shaft, a support therefor, a handle to actuate said shaft, an arm rigidly keyed to said shaft, a vibrator-roller supported at least in part by said arm, a pair of arms loosely keyed to said shaft, a form-inking roller mounted on said pair of arms, means to rotate said vibrator-roller, and means to reiprocate said vibrator-roller, whereby said rollers may be swung into inoperative poslition and substantially simultaneously separated from vone another, substantially as described.

3. In a printing-press, the combination 'of a frame, a rock-shaft mounted for oscilla-` tion on said frame, a handle to aetuate said shaft, a lock for said handle, an arm rigidly keyed to said shaft, a vibrator-roller supported at least in part by said arm, a pair of arms loosely keyed to said shaft and provided with stop lugs adapted to engage the frame tolimit the downward swinging of said arms, a form-inking roller mounted on tion on said frame, a handle to aetuate said shaft, a lock for said handle, an arm rigidly keyed to said shaft, a vibrator-roller supported at least in part by said arm, a pair of arms loosely keyed to said shaft and pro vided with stop lugs adapted to engage the frame to limit the downward Swingin of said arm, a form-inking rollerv mounte on said pair of arms, means to rotate said vibratorroller operative for all positions of the latter, and means to reciprocate said vibrator-roller operative for all positions of the latter, whereby said rollers may be swung into inoperative position and substantially simultaneously separated from one another without disturbing the operativeness of the vibrator-rol1er rotating and reciprocating mechanisms, substantially as described.

EDWARD F. DUDLEY. 

